20 Most Recent Holmes Products HCH4166 Ceramic Compact Heater Questions & Answers

Wiring diagram for a 3-way switch, one of the many wiring diagrams showing different methods of wiring a three way switch circuit. This electrical wiring diagram shows power into light switch Box #1 – wire to light from switch box #1, and from switch box #1 to three-way light switch box #2.

Probably the thermostat contacts have become worn and a certain amount of arcing is happening when they close. Replacement thermostat units used to be easy to change and were readily available for quality domestically manufactured oil filled radiators but these days it would probably be cheaper to buy an imported heater. You wouldn't lose by asking your local supplier and if they are still available check the internet price. It would be wise to check the wiring and internal connections before junking it.

check your fuses, may have blown the heat side. If fuses are good, and still no heat? replace the unit.

It is more cost effective to replace the unit.

First, check the warranty to see if it still in effect. I suspect a bad contact, broken control or problem with the heater element connections. If there is no physical damage from being dropped, tripped over, etc., then something like this would be a manufacturing defect (premature failure). If it's out of warranty, and you know how to use a multimeter, you could unplug the heater and start checking the continuity of the parts and wiring inside.