#resources for trane fault codes Electromechanical Ignition Board 2 flash - 1 Hour Lockout 3 flash - Pressure Switch 4 flash - TCO Open 5 flash - Flame W/O Gas 6 flash - Rollout Switch Open 7 flash - W1 / W2 Swapped   ReliaTel LED Functions   Reliatel Ignition Control (IGN) Green On: Normal no call for heat Slow flash: Active call for heat Fast flash: Not communicating with RTRM Error codes 2 flash – system lockout – failure to sense flame 3 flash – pressure switch failure to close when CBM stops or open when CBM starts (not applicable to 12½ to 25 tons) 4 flash – TCO circuit open 5 flash – Flame being sensed yet gas valve not energized 6 flash - Flame Rollout (FR) circuit open (Not applicable to 12½ to 25 tons)   ReliaTel Refrigeration Module (RTRM) Green Transmit LED Very fast flash: Normal operation, information being sent to other modules. Off: System failure Yellow Receive LED Very fast flash.5 second, off 1.5 second, Normal communication 1/4 second wink every 2 seconds, not communicating with any other module Off: Board failure Green System LED2 On: Normal operation (slight flickering is normal) Off: No power, board failure One blink: Emergency stop open when attempting test mode. See attachment for a video of a One blink. 2 flashes every two seconds indicates a diagnostic is present Continuous ¼ second blink: Test Mode   Service- RTRM-J6-10.     ON - Clogged filter switch has been closed for at least 2 minutes, indicating a clogged filter. OFF Clogged filter switch is in open position or no switch is installed. Fan Fail switch (if installed) has opened (3-25 Ton) within the first 40 seconds, proving that the supply fan has started. PULSING Fan Proving switch (also called Fan Fail Switch FFS) has failed to open (3-25 Ton) before 40 seconds. During this condition, the unit will run for 40 seconds and then stop. Freezestat Active Smoke Detector Active Condensate Overflow Switch Closed (if it closes 4 times in 24 hours – unit lockout)   System- RTRM-J6-9.  ON – System is powered up. This output should be on whenever the green RTRM System LED is on. Incidentally, this LED may flicker as part of its normal function on older version boards. OFF – If 0 VDC is seen, the RTRM does not have power, the output wiring is shorted, or there is an internal failure. Remove any wires connected to this terminal and check again. PULSING – Unit is in the TEST mode. Also during the TEST mode LED2 will pulse on and off. This output does not provide any diagnostic information, but is a good place to confirm that voltage readings taken are consistent with what should be seen on other outputs. Cooling-RTRM-J6-8.  ON – System is in the cooling mode and actively cooling. The unit could be economizing or have one or both compressors on. If the unit is a heat pump, the reversing valve is energized as well. OFF – System is not actively cooling. It may or may not be in the cooling mode. PULSING – This indicator can mean one or more of the following: Any controls CC1 or CC2 opens during cooling, or is open when a call for compressor occurs. The unaffected circuit will still run. With RTRM version 4.0 or greater, CC1 or CC2 circuit must open on 3 consecutive cycles. On the 4th trip, the unit will lockout. CPR1 Disable or CPR 2 Disable input has opened during a compressor cycle each time a compressor starts (within the first 3 minutes) for 3 consecutive cycles. It locks out on the fourth cycle. The unaffected circuit will still run. Supply Air Temperature is invalid and unit is VAV Mechanical ZSM Zone temperature input failure after a successful input. Both heating and cooling setpoint inputs have failed or are not attached (such as when using a 2 - wire sensor on terminals 1 & 2). Programmable ZSM The ZSM has failed to communicate for 15 consecutive minutes after successful communication has occurred.  Heating-RTRM-J6-7.  ON – System is actively heating. OFF – System is not actively heating. PULSING – See below: Gas heat If any failure occurs such as loss of flame, limit switch trip, flame rollout etc, this indication is present. Further diagnostics are available by examining the Ignition Module LED. Supply Air Temperature Sensor Failure and Unit is CV with Modulating Heat. Electric heat These units have safety limit switches in the electric heat control circuit. Should a limit switch trip, no diagnostic will occur, the HEAT indication will stay ON. Heat pump Unit is in the EMERGENCY HEAT mode. If the Compressor Disable circuit or CC1, CC2 circuits create a lockout during heating mode, a COOL FAIL (pulsing) indication will occur, not a HEAT FAIL (pulsing) indication.  HEAT FAIL and COOL FAIL at the same time, RTRM-J6-7 & 8 pulsing voltage: Coil temperature sensor is open or shorted. (Heat Pump) Unit has failed to defrost properly. (Heat Pump) Outdoor air sensor is open or shorted. (RTRM version 4.0 or greater.) Dehumidification unit- RTOM disconnected or not communicating. RTOM will flash once every few seconds. Emergency stop input is open. Factory installed phase monitor is indicating a fault FrostStat Input Active Smoke Detector Active Entering Evaporator Temp. Failure  VAV Additional Codes HEAT (YC only) Supply Air Temperature sensor has failed if configured for Modulating Heat. COOL Discharge air sensor (DTS) is open, shorted, or has failed. COOL + SERVICE Static Pressure Transducer output voltage at RTAM J1-3 is less than 0.25VDC. The transducer output is open, shorted, or the transducer is reading a negative supply air pressure. HEAT + COOL + SERVICE Static Pressure High Duct Static Trip. The static pressure has exceeded 3.5" W.C. three consecutive times. Ground wire on transducer is open.    ReliaTel Options Module (RTOM) Green System LED 3 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   ReliaTel Ventilation Module (RTVM) Green system LED 3 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   ReliaTel Air Handling Module (RTAM) Green system LED 1 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   Economizer Actuator Module RTEM Green system LED On: OK to economize Slow flash: Not OK to economize Fast flash: Not communicating with RTRM OFF: No power or system failure 1/2 second on, 2 seconds off: no communication Error codes — 1/2 second on, 1/4 second off   1 flash – Actuator fault 2 flash – CO2 sensor 3 flash – RA humidity sensor 4 flash – RA temp sensor 6 flash – OA humidity sensor 7 flash – No Communication with RTRM or OAT sensor has failed. 8 flash – MA temp sensor 9-11 flash – Internal fault   Plenum Fan LED Error Codes 1 - mains voltage phase failure 3 - over-temperature of power module 4 - internal communication error 6 - over-temperature of motor winding 7 - hall sensor error 8 - rotor locked 13 - dc-link-under-voltage Electromechanical Ignition Board 2 flash - 1 Hour Lockout 3 flash - Pressure Switch 4 flash - TCO Open 5 flash - Flame W/O Gas 6 flash - Rollout Switch Open 7 flash - W1 / W2 Swapped   ReliaTel LED Functions   Reliatel Ignition Control (IGN) Green On: Normal no call for heat Slow flash: Active call for heat Fast flash: Not communicating with RTRM Error codes 2 flash – system lockout – failure to sense flame 3 flash – pressure switch failure to close when CBM stops or open when CBM starts (not applicable to 12½ to 25 tons) 4 flash – TCO circuit open 5 flash – Flame being sensed yet gas valve not energized 6 flash - Flame Rollout (FR) circuit open (Not applicable to 12½ to 25 tons)   ReliaTel Refrigeration Module (RTRM) Green Transmit LED Very fast flash: Normal operation, information being sent to other modules. Off: System failure Yellow Receive LED Very fast flash.5 second, off 1.5 second, Normal communication 1/4 second wink every 2 seconds, not communicating with any other module Off: Board failure Green System LED2 On: Normal operation (slight flickering is normal) Off: No power, board failure One blink: Emergency stop open when attempting test mode. See attachment for a video of a One blink. 2 flashes every two seconds indicates a diagnostic is present Continuous ¼ second blink: Test Mode   Service- RTRM-J6-10.     ON - Clogged filter switch has been closed for at least 2 minutes, indicating a clogged filter. OFF Clogged filter switch is in open position or no switch is installed. Fan Fail switch (if installed) has opened (3-25 Ton) within the first 40 seconds, proving that the supply fan has started. PULSING Fan Proving switch (also called Fan Fail Switch FFS) has failed to open (3-25 Ton) before 40 seconds. During this condition, the unit will run for 40 seconds and then stop. Freezestat Active Smoke Detector Active Condensate Overflow Switch Closed (if it closes 4 times in 24 hours – unit lockout)   System- RTRM-J6-9.  ON – System is powered up. This output should be on whenever the green RTRM System LED is on. Incidentally, this LED may flicker as part of its normal function on older version boards. OFF – If 0 VDC is seen, the RTRM does not have power, the output wiring is shorted, or there is an internal failure. Remove any wires connected to this terminal and check again. PULSING – Unit is in the TEST mode. Also during the TEST mode LED2 will pulse on and off. This output does not provide any diagnostic information, but is a good place to confirm that voltage readings taken are consistent with what should be seen on other outputs. Cooling-RTRM-J6-8.  ON – System is in the cooling mode and actively cooling. The unit could be economizing or have one or both compressors on. If the unit is a heat pump, the reversing valve is energized as well. OFF – System is not actively cooling. It may or may not be in the cooling mode. PULSING – This indicator can mean one or more of the following: Any controls CC1 or CC2 opens during cooling, or is open when a call for compressor occurs. The unaffected circuit will still run. With RTRM version 4.0 or greater, CC1 or CC2 circuit must open on 3 consecutive cycles. On the 4th trip, the unit will lockout. CPR1 Disable or CPR 2 Disable input has opened during a compressor cycle each time a compressor starts (within the first 3 minutes) for 3 consecutive cycles. It locks out on the fourth cycle. The unaffected circuit will still run. Supply Air Temperature is invalid and unit is VAV Mechanical ZSM Zone temperature input failure after a successful input. Both heating and cooling setpoint inputs have failed or are not attached (such as when using a 2 - wire sensor on terminals 1 & 2). Programmable ZSM The ZSM has failed to communicate for 15 consecutive minutes after successful communication has occurred.  Heating-RTRM-J6-7.  ON – System is actively heating. OFF – System is not actively heating. PULSING – See below: Gas heat If any failure occurs such as loss of flame, limit switch trip, flame rollout etc, this indication is present. Further diagnostics are available by examining the Ignition Module LED. Supply Air Temperature Sensor Failure and Unit is CV with Modulating Heat. Electric heat These units have safety limit switches in the electric heat control circuit. Should a limit switch trip, no diagnostic will occur, the HEAT indication will stay ON. Heat pump Unit is in the EMERGENCY HEAT mode. If the Compressor Disable circuit or CC1, CC2 circuits create a lockout during heating mode, a COOL FAIL (pulsing) indication will occur, not a HEAT FAIL (pulsing) indication.  HEAT FAIL and COOL FAIL at the same time, RTRM-J6-7 & 8 pulsing voltage: Coil temperature sensor is open or shorted. (Heat Pump) Unit has failed to defrost properly. (Heat Pump) Outdoor air sensor is open or shorted. (RTRM version 4.0 or greater.) Dehumidification unit- RTOM disconnected or not communicating. RTOM will flash once every few seconds. Emergency stop input is open. Factory installed phase monitor is indicating a fault FrostStat Input Active Smoke Detector Active Entering Evaporator Temp. Failure  VAV Additional Codes HEAT (YC only) Supply Air Temperature sensor has failed if configured for Modulating Heat. COOL Discharge air sensor (DTS) is open, shorted, or has failed. COOL + SERVICE Static Pressure Transducer output voltage at RTAM J1-3 is less than 0.25VDC. The transducer output is open, shorted, or the transducer is reading a negative supply air pressure. HEAT + COOL + SERVICE Static Pressure High Duct Static Trip. The static pressure has exceeded 3.5" W.C. three consecutive times. Ground wire on transducer is open.    ReliaTel Options Module (RTOM) Green System LED 3 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   ReliaTel Ventilation Module (RTVM) Green system LED 3 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   ReliaTel Air Handling Module (RTAM) Green system LED 1 On: Normal communication with RTRM 1/4 second on, 2 seconds off: No communication Off: No power or board failure   Economizer Actuator Module RTEM Green system LED On: OK to economize Slow flash: Not OK to economize Fast flash: Not communicating with RTRM OFF: No power or system failure 1/2 second on, 2 seconds off: no communication Error codes — 1/2 second on, 1/4 second off   1 flash – Actuator fault 2 flash – CO2 sensor 3 flash – RA humidity sensor 4 flash – RA temp sensor 6 flash – OA humidity sensor 7 flash – No Communication with RTRM or OAT sensor has failed. 8 flash – MA temp sensor 9-11 flash – Internal fault   Plenum Fan LED Error Codes 1 - mains voltage phase failure 3 - over-temperature of power module 4 - internal communication error 6 - over-temperature of motor winding 7 - hall sensor error 8 - rotor locked 13 - dc-link-under-voltage

Posted by Deleted (ce99cf9b) at 2021-03-10 17:23:02 UTC