When the heater is turned up to a higher btu , it cuts off after a short time

A Make and Model would help us allot!

Hi,

Here are a couple of tips that I wrote that tell you how to troubleshoot a Torpedo or Reddy heater...

Reddy Heater - Troubleshooting Torpedo Heaters

Torpedo Heater Pump Pressure Adjustment

heatman101

Hi,

Here are a couple of tips that I wrote that tell you how to troubleshoot a Torpedo or Reddy heater...

Reddy Heater - Troubleshooting Torpedo Heaters

Torpedo Heater Pump Pressure Adjustment

heatman101

you should clean the thermocoupler if it need to be replace the new one will be in a kit so you will need no etra parts

That seems to be a pretty good heating rate. You're talking about 52 degrees in 3 hours. If you want quicker heating, you will need a higher output heater.
Gary

British thermal unit: a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories. The amount of heat needed to raise 1 pound of water 1 degree F (equal to 252 calories).
(British thermal unit) Describes the heat value of fuel for appliances - the higher the BTU, the more heat available for cooking.
A Btu is equivalent to 252 calories and serves as the base unit for measuring the heat content of a fuel source.

-The Ugly Pool Guy www.wefixuglypools.com

The temp you are looking at may be an error code. 72 Room sensor, 68 Over heat, 76.80 Room sensor short, etc. What is the exact code??

Tom

Sounds like the thermocouple needs changing. This is the flame failure device, they can burn out after a few years. Recommend getting a technican to fix it but you could ask him to make sure he has a thermocouple for this model on his first visit to save paying for two calls.

This sounds like a common problem with tankless type water heaters. The modulating burner has a set Btu range it can operate within, a maximum and minimum. With very low flow rates and very low temperature rises, the burner has trouble maintaining a steady output temperature because the btu load drops below the heater's minimum input. Typically the machine will overheat the water beyond it's setpoint, the burner will cut out, and then re-ignite once the output temperature has dropped low enough.
The solution to stopping this behavior is to simply increase the water flow through the device (i.e. higher flowing fixture or larger pump). This type of problem is exaserbated with recirculation systems that bring a very high water temperature to the unit.
Higher end tankless brands have a lower minimum input btu and thus fewer problems with this.

if the propane cylinder is almost empty you maybe getting a concentration of murcapton(spelling?)this odorant is added to propane so it has an odor.when the gas gets low in the cylinder you can pull more odorant that may have settled in the bottom of the tank over time. there are other reasons since you are dealing with an unvented heating product , such as other odors fron oils,cleaning products, paint, etc. there could other problems so you may want to take it to your local propane store. jr