Takagi
PALOMA TANKLESS WATER HEATER FLASH CODES. TANKLESS WATER HEATER REPAIR AND SERVICE IN MISSISSAUGA OAKVILLE STREETSVILLE, PORT CREDIT, CLARKSON, LORNE PARK.
Takagi Error Codes
Takagi Error Codes for Tankless Water heaters
Check your Takagi error codes below as there could be a risk of fire, explosion, carbon monoxide poisoning, or even a potential scalding hazard. Service and repairs on these heaters must be by a qualified service professional.
Watch out: some errors are signaling a dangerous condition!
All units are put into a self diagnostic state for all Takagi error codes, this is for your safety and convenience when trouble shooting.
Error Code Display Location
Takagi error codes may be displayed in different locations on some units. The 3‐digit 7‐Seg LED displays error code, or the TM‐RE30 (if installed) displays the 3‐digit error codes. Alternatively for Easy-Link System units, The 7‐Seg LED of the individual unit with the error in question displays the whole 3‐digit error code.
The TM‐RE30 (if installed) displays a 3‐digit number which signifies which unit has the error, and what the error code is if you have a multi unit system.
If there is a problem with the installation or the unit, it will display a numerical error code on the Remote Controller (if installed), or on the 7‐Seg LED on the computer board (510 (T‐D2). If your systems doesn’t have an LCD or remote controller Takagi has installed a red LED that will flash the corresponding error codes. (110 (T‐KJr2), 310 (T‐K4)) use this method to display the source of the problem.
Tips For Reading the Codes
Consult the chart for the cause of each error code.
If your water heater model is not listed in the chart below then the error code in this table may not apply to your system.
See your water heater manual or troubleshooting manual for your specific water heater model for expanded detail about the meaning and the corrective steps for each of these error codes. If all else fails try rebooting the system by unplugging it and waiting 2 minutes before plugging it back it.
Error Code | Issue | Models | Replacement Parts |
---|---|---|---|
1 | Wrong dip switch setting Red LED / Computer Board Fault | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
2 | Inlet Thermistor / Output Thermistor / Air-fuel ratio rod failure | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
3 | Ignition Failure / Flame Loss | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
4 | Abnormal Fan Motor | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
5 | Warning for 991 error code / Abnormal Combustion | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
6 | Abnormal Gas Valves / Abnormal Solenoid Gas Valve / False Flame Detection | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
03 | Wrong dip switch setting, 110 (T‐ KJr2), 310 (T‐K4) Remote | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
10 | Warning for 991 Error Code | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
11 | Ignition failure | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
12 | Flame loss | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
31 | Output Thermistor | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
32 | Inlet Thermistor | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
39 | Air-Fuel Ratio Rod Failure | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
51 | Abnormal Gas Valves | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
55 | Abnormal Solenoid Gas Valve | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
61 | Abnormal Fan Motor | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
70 | Computer board fault | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
72 | False flame detection | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
74 | Remote controller communication failure | 110 (T‐ KJr2), 310 (T‐K4) Remote | |
99 | Abnormal combustion | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
031 | Wrong dip switch setting, possibly LP gas set when the fuel is Natural gas, or vice versa | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
070 | Computer board failure – see 701 | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
072 | False flame detected – see 721 | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
074 | Remote control problem – see 741, 751 | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
099 | Improper combustion – see 991 Watch out: this is an unsafe condition with a CO hazard. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
101 | Improper combustion.
Watch out: this is an unsafe condition. Look for a blocked flue or chimney (or downdrafts in the chimney) or a problem with the draft inducer fan. Warning for 991 error code | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
111 | Ignition failure; the burners do not light. Check for a bad igniter, flame sensor, gas valve. Check for gas supply. Check for a blown fuse on the circuit board. | T-D2, T-H2-OS, T-M32, T-M50 | |
112 | Burner flame lost. See code 111 above. | T-D2, T-H2-OS, T-H3-DV/OS, T-M32, T-M50 | |
121 | Burner flame lost. See code 111 above. | T-D2, T-H2-OS, T-H3-DV/OS, T-M32, T-M50 | |
311 | Output thermistor failure. Check the thermistor and its wires on the heat exchanger. Replace the thermistor if you don’t see a loose or disconnected wire. | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
321 | Input / Inlet thermistor failure. Check the thermistor and its wires at the water inlet. Replace the thermistor if you don’t see a loose or disconnected wire. | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
331 | Mixing Thermistor failure | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
341 | Thermistor failure | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS | |
391 | Air-fuel ratio rod failure. Check wire connections and if no loose wire, replace the AFR rod. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
441 | Flow Sensor Failure (Easy-Link or Multi-Link System Only)
Possible: Inlet filter clogged, water flow problem. Also check for loose wire connections. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
510 | Gas valve failure. Inadequate gas pressure or flow. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
551 | Gas solenoid valve failure. Check gas supply and if no problem the solenoid needs replacement. | T-H2-OS, T-M32, T-M50 | |
611 | Abnormal fan motor | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
621 | Exhaust fan motor (indoor models only) | T-H2-OS | |
631 | Pump Failure | T-H2-OS, T-M32, T-M50 | |
651 | Flow Adjustment Valve Fault (Easy-Link or Multi-Link System only) | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
661 | Bypass valve fault (540 (T-H3) model only) | T-H2-OS, T-M32, T-M50 | |
681 | External fan motor failure | T-M50 | |
701 | Computer board failure; check for loose wires, electrical power supply, signs of damage to the board such as black or brown marks indicating overheating or burned | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
711 | High Limit Switch / Overheat Cutoff Fuse Circuit is Compromised
Watch out: this is an unsafe condition. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS | |
721 | False flame detected.
Check for condensate accumulation, blocked or missing condensate drain, condensate leaks. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
741 | Remote control not communicating with the water heater, check remote batteries, check remote sensor wiring, remote control access line of sight. | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
751 | Temperature Controller Problem | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS | |
761 | Communication Error in Easy-Link or Multi-Link System. | T-D2, T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS, T-M32, T-M50 | |
941 | Abnormal exhaust temperature
Watch out: this is an unsafe condition risking CO hazards. | T-H2-OS, T-H3-DV/OS, T-H3J-DV/OS, T-H3S-DV/OS | |
991 | Improper gas combustion. Abnormal combustion.
Watch out: this is an unsafe condition risking CO hazards. Check for blocked exhaust flue or under-sized exhaust flue. Check for debris clogging the gas burner or for a failed or blocked fan. |