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SIT Proflame 2 Troubleshooting: IFC Blink Codes, Beeps and Fixes

By Fireplace Choice October 28, 2026 | control-systems error-codes gas-fireplaces IFC proflame remotes SIT troubleshooting | 0 comments

SIT Proflame 2 is SIT's remote and electronic ignition system built around the IFC (Integrated Fireplace Control): a 120-volt board with battery backup that sparks the pilot, proves the flame, opens the SIT Proflame gas valve and runs flame height, fan and lights from a 315 MHz remote. It is...

SIT Proflame 1 Troubleshooting: GT/GTM Remotes, Receivers and DFC Boards

By Fireplace Choice October 28, 2026 | control-systems DFC gas-fireplaces proflame receivers remotes SIT troubleshooting | 0 comments

SIT Proflame 1 is SIT's original Proflame remote system, the GT series: a handheld transmitter and a separate battery-powered receiver wired to the gas valve. It comes in two kinds of fireplace: millivolt units with a standing pilot and a SIT 820 or 829 NOVA mV valve, and electronic-ignition units...

SIT 820 Nova Millivolt Valve Troubleshooting

By Fireplace Choice October 28, 2026 | Gas Valve Millivolt SIT SIT 820 Nova Standing Pilot Thermocouple Thermopile Troubleshooting | 0 comments

The SIT 820 Nova mV is a millivolt gas valve for standing pilot gas fireplaces, log sets and space heaters. The pilot burns all the time and its thermopile powers the valve, so the fireplace works without house power. Your fireplace's parts list may give the valve under the fireplace...

Honeywell and SIT 630 EuroSIT Fireplace Valve Troubleshooting

By Fireplace Choice October 28, 2026 | 630 EuroSIT Empire gas valves Honeywell Lennox Majestic millivolt Resideo SIT SmartValve Superior troubleshooting vent-free Vermont Castings | 0 comments

This guide covers three gas valve families: Honeywell millivolt valves (VS8420, VS8510, VS8520, VS820), Honeywell SmartValve electronic controls (SV9401 to SV9403 and SV9501 to SV9503), and the SIT 630 EuroSIT standing-pilot thermostat valve. Honeywell valves are found in Superior and Lennox Hearth fireplaces, older Majestic and Vermont Castings inserts and...

Understanding Gas Fireplace Remote Control Systems: SIT Proflame vs Skytech vs Mertik Maxitrol

By Fireplace Choice March 19, 2026 | buyer guide comparison gas fireplace Mertik Maxitrol Proflame remote control SIT Skytech | 0 comments

Gas fireplace remote control systems are not all the same. The three dominant systems — SIT Proflame, Skytech, and Mertik Maxitrol — each use different technology, offer different features, and are compatible with different fireplaces. Choosing the right system (or understanding the one you already have) matters for both initial...

How to Replace a Gas Fireplace Gas Valve

By Fireplace Choice March 19, 2026 | DIY repair gas fireplace gas valve Honeywell how-to Maxitrol replacement Robertshaw SIT | 0 comments

The gas valve is the heart of your gas fireplace. It controls gas flow to both the pilot and main burner, responds to thermostat and remote control signals, and contains critical safety mechanisms. When a gas valve fails, the fireplace either won't light, won't stay lit, or produces erratic flames...

Gas Fireplace Remote Not Working: Complete Troubleshooting Guide

By Fireplace Choice March 19, 2026 | gas fireplace Mertik Maxitrol Proflame receiver remote control SIT Skytech troubleshooting | 0 comments

You press the button on your gas fireplace remote and nothing happens. No click from the valve, no flame, no response at all. A non-working fireplace remote is one of the most common service calls we hear about, and in most cases it's a problem you can solve yourself without...

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