Heater & fireplace troubleshooting
Find the fix.
Bring back the warmth.
Understand error codes, find common causes and explore practical guides for your heater or fireplace—including when to call a professional.
Water Heaters
Latest on Water Heaters, DIY Fixes and Guides
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![Rheem Water Heater Red Light Flashing 9 Times [Fixed A-Z]](https://heaterfixlab.com/wp-content/uploads/2026/08/rheem-water-heater-red-light-flashing-9-times.jpg)
Rheem Water Heater Red Light Flashing 9 Times [Fixed A-Z]
The number one reason behind a Rheem water heater red light flashing 9 times is a failed chamber sensor. It’s…
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![Honeywell Water Heater Thermostat Settings [Explained A-Z]](https://heaterfixlab.com/wp-content/uploads/2026/05/Honeywell-Water-Heater-Thermostat-Settings.jpg)
Honeywell Water Heater Thermostat Settings [Explained A-Z]
Trying to understand Honeywell water heater thermostat settings can feel more confusing than it should be. Instead of showing exact…
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![Honeywell Water Heater Pilot Light Won’t Light [Solved A-Z]](https://heaterfixlab.com/wp-content/uploads/2026/02/Honeywell-Water-Heater-Pilot-Light-Wont-Light.webp)
Honeywell Water Heater Pilot Light Won’t Light [Solved A-Z]
The Honeywell water heater pilot light won’t light when the system cannot confirm a safe, stable flame during startup. In…
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![Truma Water Heater Not Getting Hot [How To Fix]](https://heaterfixlab.com/wp-content/uploads/2023/05/Truma-Water-Heater-Not-Getting-Hot-1.jpg)
Truma Water Heater Not Getting Hot [How To Fix]
It’s extremely frustrating to see your Truma water heater not getting hot. The main reasons behind this are: We’ll discuss…
Room and Garage Heaters
Latest on Room and Garage Heaters, DIY Fixes and Guides
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![How To Replace A Dyna-Glo Thermocouple [Complete Guide]](https://heaterfixlab.com/wp-content/uploads/2025/10/How-To-Replace-Dyna-Glo-Thermocouple-1.jpeg)
How To Replace A Dyna-Glo Thermocouple [Complete Guide]
If your Dyna-Glo heater lights for a few seconds and then dies when you release the control, you’re most likely…
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![How To Light A Dyna Glo Heater [All Types Explained]](https://heaterfixlab.com/wp-content/uploads/2025/10/How-To-Light-Dyna-Glo-Heater.webp)
How To Light A Dyna Glo Heater [All Types Explained]
The main types you need to know when learning how to light a Dyna-Glo heater are: Besides that, some models…
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Comfort Zone Heaters Thermostat Not Working? Here’s How I Solved It
When your Comfort Zone heaters thermostat is not working properly, it will often give you inconsistent room temperatures. I have…
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![Comfort Zone Heater Smells Like It’s Burning [7 Easy Fixes]](https://heaterfixlab.com/wp-content/uploads/2025/05/Comfort-Zone-Heater-Smells-Like-Burning-1.jpg)
Comfort Zone Heater Smells Like It’s Burning [7 Easy Fixes]
If your Comfort Zone heater smells like it’s burning, the main reasons behind it are: Apart from that, it can…
Pool Heaters
Latest on Pool Heaters, Fixes and Guides
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![Sta Rite Pool Heater Turns On By Itself [5 Easy Fixes]](https://heaterfixlab.com/wp-content/uploads/2022/06/Sta-Rite-Pool-Heater-Turns-On-By-Itself.jpg)
Sta Rite Pool Heater Turns On By Itself [5 Easy Fixes]
The most common reasons behind the Sta Rite pool heater turns on by itself are an automation issue, a faulty…
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![Hayward Pool Heater bO Code [How To Fix]](https://heaterfixlab.com/wp-content/uploads/2022/05/A1-Hayward-Pool-Heater-bO-Code-min.png)
Hayward Pool Heater bO Code [How To Fix]
The Hayward pool heater bO code is supposed to appear on your display when a remote thermostat is controlling the…
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![Sta Rite Pool Heater Troubleshooting [7 Easy Fixes]](https://heaterfixlab.com/wp-content/uploads/2022/05/Sta-Rite-Pool-Heater-Troubleshooting.jpg)
Sta Rite Pool Heater Troubleshooting [7 Easy Fixes]
There are some common issues that the users of the Sta-Rite pool heater face. These frequent problems are heater cycles…
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![Raypak Pool Heater Won’t Ignite [9 Easy Fixes]](https://heaterfixlab.com/wp-content/uploads/2022/05/Raypak-pool-heater-min.png)
Raypak Pool Heater Won’t Ignite [9 Easy Fixes]
There can be a wide range of reasons why your Raypak pool heater won’t ignite. A clogged pilot orifice, faulty…