Why Your Water Heater Boiler Combo Isn't Heating
It frustrate when Vangood water heater boiler combo not heat. Step shower expect warm get cold blast, or home not cozy as temp drop. Few common reason why this happen, know them help figure out. First, simple thing often right. Unit on? Sound obv but power out or shut off happen. Check breaker for boiler, might trip. Look power switch on unit sure 'on'. If gas, gas supply on. Pilot light out sometime, sign gas valve close or supply issue. See small flame suppose be there out, clue. Another, thermostat problem. Thermostat like brain tell when on off. Set too low or bad, no signal heat. Simple reset or adjust higher can fix, or check program schedule not block heat time. We see programmer on 'vacation' no one know. Low water presure sneaky too. Unit need certain presure work right. Too low safety shut heat to save damage. Check gauge on boiler. Below 1-1.5 bar cold, repressurize. Homeowner can do with Vangood instruct, but unsure call pro. Blockage big issue. Sediment build pipe boiler over time, block flow. Especial old system or hard water area. Heat exchanger or pipe clog, hot water not circle, no heat home. Notice some radiator warm other cold, or strange noise. Air trap can stop heat too, cold spot or gurgle sound. Bleed radiator release air, common task fix. At Vangood we design robust, but wear happen. Faulty pump posibility. Pump move hot water home. Fail no move no heat. Serious need pro fix. Safety feature protect but sometime sensetive, trigger shut by small thing like overheat flame fail presure. See error code on screen clue. Check Vangood manual for code mean helpful. Last, inside part like heat exchanger diverter valve fan fail time. Complex need engineer diagnose repair. When not work right whole heat mess up leave cold.