Faulty Thermostat? How to Spot It and What to Do
If your home feels too hot or too cold, the thermostat might be the problem. A thermostat controls the temperature by telling the heating or cooling system when to turn on or off. When it goes wrong, you can end up with wasted energy, higher bills, and an uncomfortable room.
Common Signs Your Thermostat Isn’t Working
First, notice if the temperature on the dial or screen doesn’t match the actual room feel. If you set it to 20°C and the room stays at 15°C, that’s a red flag. Another clue is a thermostat that constantly jumps between temperatures or cycles on and off too quickly. You might also hear your boiler or AC turning on even though you set the thermostat to ‘off’. Finally, look for dead batteries, a blank display, or error codes that won’t clear.
DIY Checks Before You Call a Pro
Before you pick up the phone, try these quick steps. 1. Check the power: make sure the thermostat has fresh batteries or is still connected to the mains. 2. Reset it: many models have a reset button or you can turn it off for a minute and turn it back on. 3. Verify the wiring: if you feel comfortable, remove the cover and ensure all wires are tight and not corroded. 4. Clean the sensor: dust can block the temperature sensor, so gently wipe it with a soft cloth. 5. Test the mode: switch between heating and cooling to see if the problem follows one mode or affects both.
If the thermostat still behaves oddly after these checks, it’s time to call a professional. South Shields Appliance Repair Services has technicians who can diagnose electronic faults, replace worn‑out parts, or install a new thermostat if needed. Trying to fix a complex electronic issue yourself can be risky and may void warranties.
When you book a service, the engineer will first test the thermostat with a multimeter to confirm voltage and signal output. They’ll also inspect the heating system for any related issues, because sometimes a faulty thermostat is just a symptom of a larger problem. The whole process usually takes under an hour, and they’ll explain what they found in plain language.
Cost‑wise, a simple thermostat repair often runs under £80, while a full replacement can be £120–£180, including labour. South Shields Appliance Repair offers transparent pricing and works with most insurance plans, so you won’t get any surprise charges.
In short, keep an eye on temperature mismatches, erratic cycling, and dead displays. Do the basic power and wiring checks yourself, but don’t hesitate to call a qualified tech if the problem persists. A working thermostat keeps your home comfortable, saves energy, and protects your heating system from unnecessary wear.
Ready to get your thermostat sorted? Contact South Shields Appliance Repair Services today for fast, reliable service in South Shields and the surrounding area. Your comfort is just a call away.
