furnace error flashes 3 times

This is a case of furnace error flashing 3 times in one day. The digital interface on the furnace has three lights that indicate the furnace’s status: P-C-O. (This doesn’t help much either.)

The management at this company is trying to get a handle on what troubleshooting steps they should take. The reason for this is when there is an issue with the boiler, it causes heat to be lost and their heating bills to go up.

When the furnace error flashes 3 times, it is usually because there is a problem with the gas valve or gas pressure. Sometimes, this may also be due to a low-level flame in the burner or a high level of emissions.

The solution for this issue could be as simple as turning on the pilot light and waiting for it to turn on, or it could be as complicated as replacing some parts of the furnace.

Furnaces have notorious problems with frequent errors, or flashing 3 times to tell you that it needs attention. These errors are often caused by a clogged up gas vent and an open flame safety valve. For these reasons, it’s important that you check your furnace on a regular basis to make sure that everything is working properly and safely