Holmes HBH-5010 too hot

SOURCE: holmes bh3955 or holmes hh3690

Depending where you live, here in Vermont we take square footage and multiply by 30 for a rule-of-thumb calculation. This gives us a very conservitive Btu rating. New York City use 20 Btu per square foot and Washington D.C. use 15.

SOURCE: 98 dodge dakota slt 318. no heat, low operating temp

First thing first, turn off the engine wait for 15 - 20 mints, open the radiator cap and fill it up to the top then start the engine and see if it needs more water adn add as needed, then wait till you ca see the water circulating in the radiator now instead of corculating if it starts boiling out shut the engine replace the thermostat and do the whole thing again.

unless there is water in the engine the gauge will not be able to show the actual temp of the engine, so always malke sure you have water / antifreeze

SOURCE: Heater running continuously

Sounds like you have a problem with your heat pump. Your aux heat is a electric coil. how old is the unit when was the last time it was serviced? How cold is it out side?

SOURCE: Heater fan only works on the two low settings.

if you have checked the switch as recommended, it is most likely to be the heater resistor which contols the diffrerent speeds. it is
normally fited near to the motor and is a squarish block with multiplug on it and coils like springs in the centre of it, look at the coils they may be burnt out.hope this helps

SOURCE: h100id induced pool heater runs for 4 minutes then stops heating

I just solved this about an hour ago. It's the connection from the circuit board to the ignitor. The same thing happened to me that it ran a long time and then it wouldn't. At some point it loses spark. The large wire from the board to thee= ignitor is the culprit. Take the ignitor out and press the two electrodes to about 1/4"-3/8max. Clean the surface plate where it meets the heater and also clean the brass piece on the othe end. Then clean the brass piece on the circuit board. Slide the 2 boots down a little and expose the receptacles. Press them a little with pliers, put them on their respective connections and then slide the boots back on. It started right up and has been running since! This after I bought a new gas valve $178! Let me know if this does it for you.