Furnace, Boiler and Water Heater Troubleshooting

You may save money by avoiding a service call!

Home heating and water heating equipment is a major investment. The possibility of problems and repair bills can be worrying. But we have some troubleshooting tips for your oil-fired furnace or boiler or your water heater. You may be able to fix the problem yourself with needing a Marandola service technician to come by!

If these water heater, furnace or boiler troubleshooting tips don’t work, no worries! Marandola provides 24/7 emergency service. Our affordable service plans also cover not only repairs but maintenance tune-ups to keep your equipment in good running order.

REMINDER: If you have a no-heat emergency, please DO NOT email or contact us online. Call us day or night at 860-355-4877 for emergency service. Additionally, click the button below to cover some basic troubleshooting steps to try to remedy the problem.

I need help with my oil heating system!

Water Heater Troubleshooting

Is the water cold?
Cold water is usually caused by either a lack of power, a faulty thermostat or a faulty heating element. Check for and reset any tripped circuit breakers and replace any blown fuses. Check power switches to make sure they are turned on and power indicators are lit. Inspect the thermostat to see that it is receiving power. If this does not resolve the problem, contact us for a service call.

Is the water warm but not as hot as your set temperature?
The most common causes for this are an undersized water heater, crossed hot and cold water connections or a malfunctioning heating element or thermostat. Check for crossed connections by turning off the water supply and turning on a hot water faucet. If the water still flows, the like culprit is a crossed connection. Get in touch with us for a service call. This is a problem best solved by a professional. Contact us and we’ll come fix it.

Is the water too hot?
This may be the easiest troubleshoot. Check the thermostat. If it’s above 120° Fahrenheit, turn it down to that setting. That keeps your water hot enough while lowering the risk of scalding. If the water stays too hot, contact us for a service call.

Are there leaks?
There are many potential causes of leaks in your water heater. Check for loose plumbing connections and tighten them. If there are no loose connections or there are still leaks, contact us right away as there may be a possibility of tank failure.

Is the hot water rusty?
This is a sign of potential corrosion inside your water heater tank. The anode rod, used to attract the minerals that lead to corrosion away from the walls inside the tank, may have failed. Contact us right away.

Is the water heater making weird noises?
If you hear banging or rumbling while your water heater is running, it’s a sign of sediment buildup inside the water heater tank. Flush the water heater.

If you’re ever concerned there’s an issue with your boiler, furnace or water heater, don’t hesitate to contact us right away. We’ll always be happy to lend a hand, and take a look.