What happens when a temperature sensor goes bad?

If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. This will cause the computer to think the engine is cold, even when it is not, and as a result will use more fuel than necessary.

How do you test a heater temperature sensor?

Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. You should have a reading of approximately 2000 ohms. Check the warm sensor in your engine. You should see a much lower reading on the ohm meter.

How does a 2 wire coolant temp sensor work?

Today’s coolant temp senders have two wires, one wire is feed a small amount of voltage from the computer while the second wiring is read by the computer and the engine temperature determined. A coolant sensor wiring connector is held in place using a safety clip.

How do you troubleshoot an RTD sensor?

The simplest way to troubleshoot an RTD is to use an ohmmeter. Since the RTD must have some amount of original resistance at room temperature, one should be able to disconnect and isolate its leads so its resistance may be measured. If the RTD is platinum, the amount of resistance should be approximately 110 Ω.

What to do if your Rheem pool heater has an error code?

Resetting the Rheem pool heater will often clear the error code. Rheem residential pool heaters have large air coils, a high capacity pan for better air flow and heating, a scroll compressor and a digital control panel.

How do you remove a sensor from a control system?

Much like a phone jack, the sensors’ connections will have minuscule tabs that push down so that the sensor connection can be removed from the circuit board. *It can be tedious, as the connections are quite small (picture below). Step 5: Re-place the cover of the control system loosely so nothing can touch the circuits.

Why is my spa control panel not working?

Reset the control panel if it only displays dashes and not error messages. Turn the power off for one hour and then turn it back on. If the control panel is displaying strange messages or have lights blinking at the same time, it could be a software issue with the circuit board.

What to do if sensor balance error continues?

If the Sensor Balance Error continues, please contact us at 1- (877)-347-7727 or create a Support Ticket by clicking HERE to inquire about further assistance. Did you find it helpful?

What causes a heater sensor to go out of balance?

A verified sensor out of balance occurs when SnS is flashing. If one of the sensors has increased 4F degrees or more during the first 90 seconds of startup, then a possible heater dry condition may have occured (air trapped in the heater manifold..) so the system shuts down out of safety.

How can I troubleshoot my pool heater problem?

Troubleshooting pool heaters is a methodical process; or a process of elimination really. First eliminate water flow issues, then gas flow issues, and finally the low voltage electric currents that run between pool heater components.

Why is my Hayward pool heater not working?

Heater runs for a while then shuts off and shows ‘HI or HP’ on display. Low water flow is normally the problem. Check filter and pump. A common problem when running unit on spa only exists in the summer when spa temperature of about 100° F is reached and the unit shuts off with the ‘HI’ fault.

How to troubleshoot a spa control panel problem?