Diagnostics and Specific Fault Finding
Gas Heating diagnostics and fault finding
TQ DGH - FC20, FC21, FC35, FC36 Flame rollout failures - bridging loom (Pt # 651071) Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01...
Wed, 15 May, 2024 at 2:23 PM
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 Infor...
Mon, 15 May, 2023 at 12:29 PM
TQA 5X30 FC23 (room fan not running) Diagnostics Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Vi...
Wed, 15 May, 2024 at 2:17 PM
Start-up and Run Flowcharts TQ Single Stage TQ3 TQD3 BMQ3
Mon, 10 Jul, 2023 at 9:01 AM
Advise for home owners Gas rate & fan speed adjustment TQM, TQS4, TQS5, TQS6 and TQS7 series heaters
Advise for home owners Gas rate & fan speed adjustment TQM, TQS4, TQS5, TQS6 and TQS7 series heaters
Fri, 13 Aug, 2021 at 12:59 PM
TQM THM DGH - Confirming modulating gas valve operation
Tue, 23 May, 2023 at 10:33 AM
TQ DGH FC33, FC34 - FC33 ICS internal heat enable signal error, FC34 Gas valve on off signal incorrect
Fri, 24 May, 2024 at 2:04 PM
TQ DGH - FC6 FC71 FC72 FC73 FC74 FC75 FC76 FC77 FC78 ICS Micor errors
Mon, 12 Aug, 2024 at 12:46 PM
THM5 - THM6 Start and Run flowcharts - fault diagnosis flowchart for normal operation
Tue, 9 Jul, 2024 at 2:48 PM
THM DGH FC2 Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history
Tue, 24 Oct, 2023 at 4:22 PM