Diagnostics and Specific Fault Finding
Gas Heating diagnostics and fault finding
TH5 Condensate Probe to Pressure Switch Upgrade Kit 638829 ⚠️ Safety Notice – Gas Heating Products This appliance must only be installed, commissioned,...
Thu, 16 Jul, 2026 at 12:50 PM
TA TA3 TB3 Pre June 2004 Johnson G821 ignition and flame sense PCB system service diagnostics ⚠️ Safety Notice – Gas Heating Products This appliance mu...
Thu, 16 Jul, 2026 at 11:41 AM
TG, TH DGH FC11 displayed to user on Spectrolink ⚠️ Safety Notice – Gas Heating Products This appliance must only be installed, commissioned, serviced ...
Thu, 16 Jul, 2026 at 11:47 AM
TQ DGH - FC6 FC71 FC72 FC73 FC74 FC75 FC76 FC77 FC78 ICS Microerrors ⚠️ Safety Notice – Gas Heating Products This appliance must only be installed, com...
Thu, 16 Jul, 2026 at 11:46 AM
TQ DGH - Measured output voltage to motor is less than 240 Volts - FC4 Thermistor > 70 deg C during run, FC10 HX OT1 opened, FC19 HX OT2 opened ⚠️ Sa...
Thu, 16 Jul, 2026 at 11:44 AM
TA3 TB3 TB3X from July 2004 Fenwal 35-80 ignition and flame sense PCB system service diagnostics ⚠️ Safety Notice – Gas Heating Products This appliance...
Thu, 16 Jul, 2026 at 12:51 PM
TQ FC00 - heater has recovered from a fault, but the lockout state on the ICS PCB did not update. ⚠️ Safety Notice – Gas Heating Products This applian...
Thu, 16 Jul, 2026 at 12:53 PM
THM - Adjusting the fan speed and maximum gas rate (THM series ducted gas heater only)
Thu, 16 Jul, 2026 at 12:53 PM
TG5 with condensate probes (pre-pressure switch) FC18 condensate detected at probes FC17 Condensate detected during run ⚠️ Safety Notice – Gas Heating P...
Thu, 16 Jul, 2026 at 12:54 PM
THM replacing MCB (Modulating Control Board) ⚠️ Safety Notice – Gas Heating Products This appliance must only be installed, commissioned, serviced and...
Thu, 16 Jul, 2026 at 12:54 PM