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Glow Brand Boiler Error Codes

Updated · by Aurora Star Tech Inc.

62 Glow Brand Boiler error codes and diagnostic codes, with causes and troubleshooting steps for each. Select a code, or find your model below.

Homeowner with a boiler problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Glow Brand Boiler error codes list

CodeMeaningSeverity
ALEgAnti-legionella runLow
AttEWarning prefixLow
AttE 202Unknown appliance model selectedLow
AttE 204Outdoor sensor open or shortedLow
CodEInstaller password promptLow
dAirDe-air sequence runningLow
ErrBlocking error prefixLow
Err 100Internal software error (blocking)Medium
Err 101Internal software error (blocking)Medium
Err 102Internal software error (blocking)Medium
Err 103Internal software error (blocking)Medium
Err 104Internal software error (blocking)Medium
Err 105CH supply over 180 F (82 C)Medium
Err 106Internal software error (blocking)Medium
Err 107Internal software error (blocking)Medium
Err 108Internal software error (blocking)Medium
Err 109Internal software error (blocking)Medium
Err 110Internal software error (blocking)Medium
Err 111Internal software error (blocking)Medium
Err 112Internal software error (blocking)Medium
Err 113Internal software error (blocking)Medium
Err 114False flame detectedMedium
Err 116Low water pressure (FILL)Medium
Err 119CH return temperature sensor openMedium
Err 120CH supply temperature sensor openMedium
Err 122DHW tank temperature sensor openMedium
Err 123Flue temperature sensor openMedium
Err 126CH return temperature sensor shortedMedium
Err 127CH supply temperature sensor shortedMedium
Err 129DHW tank temperature sensor shortedMedium
Err 130Flue temperature sensor shortedMedium
Err 134Too many resets in a short timeLow
Err 156Blocked flue switch openMedium
Err 162Low water pressure under 10 psi (FILL)Medium
FILLLow water pressure promptLow
initDisplay starting upLow
LocLockout prefixLow
Loc 0Internal software faultHigh
Loc 1Ignition failed three times in a rowHigh
Loc 2Gas valve relay faultHigh
Loc 3Safety relay faultHigh
Loc 4Blocking error lasted over 20 hoursMedium
Loc 5Fan not running for more than 60 secondsHigh
Loc 6Fan running too slow for more than 60 secondsHigh
Loc 7Fan running too fast for more than 60 secondsHigh
Loc 8Internal software faultHigh
Loc 9EEPROM contents out of dateHigh
Loc 10Wrong safety parameters in EEPROMHigh
Loc 11Internal software faultHigh
Loc 12Internal software faultHigh
Loc 15High limit exceeded (203 F / 95 C)High
Loc 16Flue temperature too highHigh
Loc 17Internal software faultHigh
Loc 18Internal software faultHigh
Loc 19Internal software faultHigh
Loc 20Flame still present 10 s after gas valve closedHigh
Loc 21Flame detected before ignitionHigh
Loc 22Three flame failures in one demandHigh
Loc 23Error code memory corruptedHigh
Loc 33Low water cut-off circuit openHigh
Loc 38Blocked flue switch tripped more than 3 times in 24 hHigh
tEStSystem test activeLow

Find codes by Glow Brand model

B85B120B160

Boiler troubleshooting guides

Glow Brand Boiler specs and setup data

Homeowner help: Boiler Not Heating: What to Check

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency Boiler Repair

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