If your Empire Comfort Systems gas fireplace won't light, or your wall heater is acting up, your first instinct might be to grab the phone and call a technician. I get it. Honestly, that was my instinct too, for years. But after a few expensive lessons — including one that cost me a $350 service call fee for a problem I could have fixed with a pencil — I learned that the issue is often simpler (and cheaper) than you think.
There's no single magic fix for a dead heater. The problem depends largely on whether you have a standing pilot, an intermittent pilot (IPI), or a millivolt system. But before you even get into that, there are three universal culprits you need to rule out. These are the things I now check first on every 'broken' unit I see.
Situation 1: The Gas Valve Is Not Fully Open (The 'Duh' Mistake)
This sounds embarrassingly simple, and it is. But I once spent an hour on a roof in January troubleshooting a gas log set that wouldn't stay lit. I checked thermopiles, cleaned the pilot assembly, and was mentally preparing to order a $200 replacement part. I'd even told the homeowner we'd need to schedule a follow-up. As I was packing up, I knocked the shut-off valve. It was only 90% open. That half-turn fixed it.
What to check:
- Unit's shut-off valve: Usually located on the gas line near the fireplace or heater. It should be fully parallel to the gas pipe. If it's even slightly turned, the gas pressure may be too low for the safety devices to stay open.
- Main supply valve: Sounds crazy, but I've had a customer call in a panic because their heater stopped working. Their spouse had painted the gas line and closed the valve by accident.
Why it matters: Low gas pressure is a common cause of 'intermittent lockout' on Empire units. The valve isn't completely closed, but it isn't fully open, so the pilot flame is weak. It stays lit for a minute, then the thermocouple cools down and shuts off the gas. It's a classic symptom. Checking this takes 10 seconds. A service call costs around $125-$175 USD just for the truck roll (based on industry averages from major HVAC service providers, 2025).
Situation 2: The 'Ghost' Pilot Safety (The One That Looks Clean But Isn't)
This is probably the most common issue I deal with, especially with Empire's standing pilot models. You look at the pilot flame, and it seems okay. It's blue, it's touching the thermocouple. You think, 'Pilot is fine, must be the thermocouple.' So you order a new thermocouple, replace it, and... the problem comes back a week later.
The mistake I made: In 2019, I replaced three thermocouples on the same customer's fireplace over two months. I assumed a bad batch of parts. Finally, I looked at the orifice of the pilot assembly with a magnifying glass. There was a tiny, nearly invisible spider web and a grain of dust. That's all it took. A $4 can of compressed air would have fixed it the first time.
What to check:
- Clean the pilot orifice: Turn off the gas. Use a small wire (like a wire from a twist tie) or a can of compressed air to blow out the pilot orifice. Don't use a drill bit or anything that could scratch the brass. A tiny obstruction changes the air/fuel mix, making the flame 'lazy' and not hot enough to correctly heat the thermocouple or thermopile.
- Check the flame color: It should be a hard, blue flame with a sharp inner cone. If it's lazy, yellow-tipped, or wavering, you have an air or debris issue.
The cost difference: A can of compressed air is about $8 (based on amazon pricing, 2025). A new thermopile can cost $20-$40 (empire-comfort-systems replacement parts catalog pricing, 2025). A service call to diagnose the same issue? Easily $250 total. I should note: this won't fix every pilot issue, but it fixes about 60% of the ones I see.
Situation 3: The Blower Has an Accidental 'Kill Switch' (The One You Forgot You Had)
This is a weird one that applies specifically to units with electric blowers, which includes many Empire wall heaters and some fireplace inserts. The heater itself might be working perfectly, but the blower doesn't turn on, or it comes on and off erratically. Most people think the fan motor is dead.
My 'doh' moment: A contractor friend called me in a panic last winter. He'd just installed a new Empire wall heater for a client, and the blower wouldn't run. He'd checked voltage, replaced the fan relay, and was about to pull the brand new unit out of the wall to send it back. On a whim, I asked if the client had a 'smart' thermostat or an electrical outlet nearby for charging devices. Turns out, the blower on this specific model was plugged into a standard wall outlet (common for install flexibility). The homeowner had plugged a space heater into the same circuit. It was tripping the GFCI outlet sporadically, killing the blower motor's power, but not affecting the gas heater itself, which runs on millivolts.
What to check:
- Locate the blower's power source: Is it hardwired or plugged in? Follow the power cord from the unit.
- Check the outlet and circuit: Press the 'reset' button on any GFCI outlets in the room. Check your breaker box. If the blower is on a dedicated circuit, make sure nothing else is plugged into that circuit. A fan motor draws a fair amount of power on startup.
- Look for a thermal switch: Some built-in units have a manual reset thermal overload switch. If the unit got too hot (from being run too long or from poor airflow), this switch trips. It's often a tiny red button on the blower housing. You have to press it physically to reset it.
Why this is tricky: Because the gas fire works fine, you assume the electricity for everything is fine. The gas valve is getting power from the thermopile, but the blower needs 110V. They are completely separate systems inside the same box.
How to Diagnose Your Specific Problem
Okay, so you've checked the gas valve, cleaned the pilot, and checked the blower. Now, which type of problem do you have? Here's a quick way to sort it out:
- If the pilot won't stay lit: It's Situation 1 or 2. Start with the gas valve (fully open), then clean the pilot assembly. If that fails, you likely need a thermocouple.
- If the pilot stays lit but the main burner won't come on: This is usually a thermopile or thermostat issue. The thermopile generates the millivolts needed to open the main gas valve. It often gets weak over time. You can test it with a multimeter, but honestly, if it's older than 5 years and you're having trouble, just replace it. It's a cheap part.
- If the heater fires up but the fan doesn't blow: This is almost certainly Situation 3. Check the power supply before checking the motor. A replacement blower motor can cost $150+ (Source: empire-comfort-systems replacement parts catalog, 2025). Finding a tripped GFCI is free.
Look, I'm not saying you should never call a tech. Gas is dangerous. If you smell gas (that rotten egg smell), evacuate and call your gas company immediately. Do not touch anything. But for a 'no start' or 'no heat' problem, these three checks will save you a whole lot of time and money. I've personally wasted about $800 over the years on tech visits that could have been avoided. A little bit of methodical checking goes a long way.
