Beware when working with electrical equipment. It may cause electric shock.
Check the power supply wires, connections with heating coils. If they are ok then possibly heating coils require replacement.
Domestic Central Heating, Dodge Caravan, well pump or a Pool Heater, or something else.
All questions need 'make model (what it is)' as first 3 words.
With the exception of the Dodge Caravan, pumps have a small bleed screw.
Google
make model bleed pump
or if it is an above ground well pump
make model prime pump
This is heavily weighted towards vehicles, but you will get the ideal of the power of Google!
https://www.google.com/search?q=%E2%80%8Bmake+model+bleed+water+pump
..
Call for Service. The timer is fine, the boiler has failed. I presume it is gas fired, which means that only gas registered service techs can work on it.
The issue of the Paloma tankless water heater displaying error code C7 38 may be caused by several factors, including a problem with the thermistor or temperature sensor, an issue with the gas valve or gas pressure, or a malfunction with the control unit or circuit board. To troubleshoot, try checking the thermistor and temperature sensor, and verifying the proper functioning of the gas valve and gas pressure. If the problem persists, consider seeking professional repair or service.
You can reset the code by turning Gage all the way up highest setting count to ten turn it to hot could to ten then turn to pilot count to ten and then turn it to desired temp burner should come on. Saves lots of money and time
The circuit is about to overload and the break could turn off due from too much electricity being used.The circuit is overloading or there is a problem with the panel needs to be replaced or the wires for your heater could be frayed or have tears in them and need to be replaced.
I've ended up with a Drayton Tempus 3 when I bought my house, and I think this is how it works. It allows you to set 2 Timers (I'll call them timer 1 and timer 2) so that you can control Hot Water or Heating On/Off times twice a day. The unit has 6 buttons - 2 for Adjustment, 2 for Hot Water and 2 for Heating. The 2 Adjustment buttons allow you adjust the Clock Time, or allow you to adjust Timer 1 and/or Timer 2. NOTE: Timer 1 is the time refered to on the Heating / Hot Water Select buttons if you press "Once". If you select "Twice" on these the both Timer 1 and Timer 2 are taken into account. For example if you want Hot Water to come on Once between 8pm -10pm, but you want Heating to come on Twice between 6am - 7am, and 8pm -10pm, you have to do the following: Set Timer 1 to 8pm - 10pm, and set Timer 2 to 6am -7pm. Then select Once for Hot Water, and select Twice for Heating. Hope this helps.
