Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Heat Flo 40R

timnotscott
timnotscott Member Posts: 18
Random question, probably a stupid one, but does anyone happen to know where the reset button is on a Heat Flo 40R? Our water stopped being hot today, and we just got this installed about a month and a half ago, so we’re assuming it just shut itself off and needs to be reset, but we can’t find the reset button anywhere and can’t find anything online or in the manual. The manual says try the reset button but doesn’t actually tell us where that is.

thank you!

Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,496
    That is an indirect water heater. It gets its heat from another source. Is you home heater working?
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • timnotscott
    timnotscott Member Posts: 18
    Yes, our heater is working fine, it’s just the water 
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,496
    Is there a circulator pump that gets the heater water to the indirect tank?

    If you only have one circulator for the system then you have zone valves that ate operated by the thermostats in the house.

    If there is a separate circulator pump, then where is that pump wire connected? Inside the boiler control panel or is it connected to a separate control box?

    Can you post some pictures of you boiler and the tank and far enough back to see the connecting pipes
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • timnotscott
    timnotscott Member Posts: 18
    Is there a circulator pump that gets the heater water to the indirect tank? If you only have one circulator for the system then you have zone valves that ate operated by the thermostats in the house. If there is a separate circulator pump, then where is that pump wire connected? Inside the boiler control panel or is it connected to a separate control box? Can you post some pictures of you boiler and the tank and far enough back to see the connecting pipes

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,297
    That black box on the indirect with the low voltage wire going to it controls the water temperature. As the tank cools down the black box operates the Taco SR501 relay. When the relay pulls in it turns on the boiler and the Taco circulator that is piped to the water tank.

    You can take the cover off the black box (it's low voltage 24 volts so you won't get shocked) and try turning the control setting up and down and see if you here the relay operating, and the circulator should start and stop. The control should be set at about 120 degrees normally
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,496
    From your picture, I can not tell if the red light on the Taco SR501 is on or off. It appears that the green light is on. That means that the SR501 has power. The red light means the circulator pump is running. If the red light is on and you still have no hot water, then you may have a problem with the circulator pump, there is air in the pipe from the boiler to the circulator, or a valve is closed. The pipes with the blue line indicate those pipes where air in the pipes will cause No Hot Water.
    If the pipes are hot at the boiler end and cold at the tank end you probably have air in the pipes. There is a easy way to get the air out.

    1. Shut off the power.
    2. Close the yellow handle valve on the circulator. (A)
    3. Put a hose on the faucet valve just above the circulator (B)
    4. Open the faucet valve (B) and see if a bunch of air comes out.
    5. Look at the pressure gauge to see that there is at least 12 PSI pressure.
    6. When you get no more air. close the faucet valve.(B)
    7. Then open the yellow handle valve back up. (A)
    8. Turn the power back on and see if the pipes get hot in about a few minutes of operation.

    If no air comes out in step 4, then you do not have an air problem. Let me know if that happens, then I will offer more instructions.
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • timnotscott
    timnotscott Member Posts: 18
    From your picture, I can not tell if the red light on the Taco SR501 is on or off. It appears that the green light is on. That means that the SR501 has power. The red light means the circulator pump is running. If the red light is on and you still have no hot water, then you may have a problem with the circulator pump, there is air in the pipe from the boiler to the circulator, or a valve is closed. The pipes with the blue line indicate those pipes where air in the pipes will cause No Hot Water. If the pipes are hot at the boiler end and cold at the tank end you probably have air in the pipes. There is a easy way to get the air out. 1. Shut off the power. 2. Close the yellow handle valve on the circulator. (A) 3. Put a hose on the faucet valve just above the circulator (B) 4. Open the faucet valve (B) and see if a bunch of air comes out. 5. Look at the pressure gauge to see that there is at least 12 PSI pressure. 6. When you get no more air. close the faucet valve.(B) 7. Then open the yellow handle valve back up. (A) 8. Turn the power back on and see if the pipes get hot in about a few minutes of operation. If no air comes out in step 4, then you do not have an air problem. Let me know if that happens, then I will offer more instructions.
    That seems to have fixed the issue! There was a lot of air there, and the pipe was exactly like you described. As soon as the air came out, the pipe was hot everywhere, and I have warm water coming out of the faucets now
    kcopp