7
Troubleshooting
PROBLEM
CAUSE
SOLUTION
4. Hot water in the cold water supply line
Timer's Manual Switch
Timer Manual Switch is set to "ON" which will cause it to run 24/7.
Adjust the Programming tabs for the desired run times.
Programming Tabs
Make sure there are not too many Programming Tabs pushed towards the "ON"
position. This will cause the pump to run more often. To best address this reduce the
number of Programming Tabs in the On position Modulating the Pump On and Off may
help. (i.e. 30 minutes before the first shower until 15 minutes after last shower).
Bypass Valve has failed
Follow these instructions to test the operation of your By-Pass Valve.
1. Verify that the pump is operational.
2. Check the Timer Switch and settings.
3. Go to the sink where the Sensor Valve is installed. Close the
cold water supply angle stop.
4. Open the cold water faucet.
5. Wait for the water to slow down to a drip or no flow.
This will take approximately 1 minute.
6. If water does not slow to a drip or completely off, carefully check the
temperature of the water. The temperature should be around around
90°F (32°C) ± 4°
7. If the water temperature is more than 100°F, replace the valve.
Incorrect Sensor Valve Installation
(See page 4).
Water temperature from water heater/boiler
If the water is not hot enough it will not shut off the By-Pass to the cold water line.
Increase the temperature in your hot water tank/ boiler.
5. Cracking, corrosion and/or leaking on the out-
side casing of the Hot Water Recirculating Pump
O-Ring failure inside the pump
The connections use a standard ¾" hose gasket and should be periodically replaced.
We also recommend using new flex lines as gaskets are usually supplied with them.
Keep in mind there may be a need for Dielectric unions when using dissimilar metals
as this can lead to premature corrosion if not properly installed.
NOTICE
If this system or any of its parts becomes damaged or needs re-
pair, turn off the water supply, stop using the system and contact
an experienced service individual immediately.
If this Manual are misplaced, damaged or illegible, or if you
require additional copies, please contact Watts for these items at
no charge.
If you are ever uncertain about a particular task or the proper
method of operating this system, consult this Manual or contact
a Premier Technical Support Representative at 1-800-752-5582.
