Diagnostics and Specific Fault Finding
Gas Heating diagnostics and fault finding
THM replacing MCB (Modulating Control Board)
Wed, 24 May, 2023 at 12:05 PM
TG / TH DGH FC1, where combustion fan starts as soon as it calls for heater without 10 second delay Click here to view YouTube video Spectrolink SC...
Tue, 19 Aug, 2025 at 9:22 AM
TG, TH DGH FC11 displayed to user on Spectrolink Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history ...
Tue, 19 Aug, 2025 at 9:21 AM
TQ 230 Vac combustion fan (1&2 stage heaters) and combustion fan resister (2 stage heaters only) - testing operation
Tue, 2 Jul, 2024 at 3:25 PM
THM Ducted Gas Heater FC2 IMPORTANT: The Fenwal MCB upgrade kit contains a modified wiring loom that mus...
Wed, 24 May, 2023 at 11:49 AM
TA5 TE5 TE4 June 2004 to Feb 2005 SPI control system service diagnostics Attached is full version of Pdf TA5 TE5 TE4 June 04 to Feb 05 Pages from April 20...
Fri, 20 Mar, 2020 at 2:01 PM
Fault code history can be accessed: SETTINGS/SERVICE/GAS HEATER 01/7378 CONT/FAULT LOG YouTube Video - MagIQtouch Heater Fault Log HEATER...
Wed, 15 May, 2024 at 2:26 PM
TQ 24Vdc Combustion Fan (modulating heaters) - testing operation Check 24VDC supply to combustion fan (pins 1 and 5 at 5-way con...
Tue, 2 Jul, 2024 at 3:08 PM
TG5 / TH5 Condensate Drain Replacement Kit # 638423 In extreme climate conditions, and installations where ice has formed inside the drain fitting. The...
Wed, 26 Aug, 2020 at 8:59 AM
Braemar DGH Motor Replacement Instructions TB, Johnson, Fenwal, SPI/MPI and BSC Control
Mon, 15 May, 2023 at 1:05 PM