What Causes Control Board Failure?

Failed transistors: The transistors in the control board are susceptible to damage due to power surges, static electricity, and age. Transistors are often the first part of a control board to fail. Loose wiring: The vibrations of the furnace over the years can cause wiring in the control board to shake loose.

What to do if your baseboard heater shuts off?

How to fix your circuit breaker: Turn off the electricity at the circuit breaker and wait for it to cool. Once the circuit breaker is cool, replace it with the size listed by the manufacturer. If your baseboard heater runs for a while then shuts off without tripping the circuit, you may have a defective thermostat.

Can a replacement circuit board be put back into a control panel?

Installing the replacement circuit board back into the control panel is simply a reversal of the removal process. Making sure that only the edges of the circuit board are touched and that the main power of the control panel is shut off, the board should be placed into the same position that it was removed from.

Do you need to replace a wall mounted electric heater?

In some cases, you may need to replace a faulty circuit breaker. Wall-mounted electric heaters are hardwired into your home’s electrical system and can draw as much as 240 volts. Always make sure that the circuit breaker controlling the heater has been turned off. Also, with a voltage tester, double-check that no current is flowing to the heater.

Can a hot spring heater relay board be repaired?

If your voltage reading was lower than 100 volts, then the board is damaged and has to be replaced. It is not repairable. Sometimes you can see visible smoke residual between one or more of the black relays (relays are shown above the probes on the Step 9 picture).

Installing the replacement circuit board back into the control panel is simply a reversal of the removal process. Making sure that only the edges of the circuit board are touched and that the main power of the control panel is shut off, the board should be placed into the same position that it was removed from.

How long does it take to replace a circuit board?

Once you determine the circuit board has malfunctioned, consider sending it to a repair service. Circuit boards can be repaired in one to two days and cost hundreds of dollars less than buying new. Keeping repaired units on hand make for quick on-the-job replacements.

Do you have to have a circuit board for a hot tub?

Circuit boards and topside control panels must be compatible with each other, in order to communicate. 9 times out of 10, when your topside control panel has gone out-of-control, or one of your pumps, or heater stops working, it’s not a circuit board problem.

What makes a furnace control board last so long?

Last week we discussed how the smaller a control board gets, the weaker the material it’s made of. The material is thinner, the solder connections are smaller, and the relays are made with tinier pieces of plastic and metal. Our customers might think a control board should last the lifetime of the furnace.