Trouble Shooting Chart
For Tempered Water Recirculated Systems
Problem
Thermometer in TempControl outlet
rises to temperature of the heater at
start of no draw (i.e. sink or
showers not running, etc.).
Hot water temperature at sink or
shower is below set point of
TempControl.
Temperature rises.
Cannot elevate or decrease
tempered water by turning
adjustment bolt.
Temperature drops during draw (sink,
shower running, etc.).
For Tempered Water Non-Recirculated Systems
Problem
Bypass, cold to hot or hot to cold.
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Symmons Industries, Inc.
Copyright © 2018 Symmons Industries, Inc.
No circulation of tempered water
because return line is piped to the hot
water source only.
Sufficient circulation of tempered
water is not reaching the hot water
Not piped to Diagrams 2 or 3. Ball
valve too far open.
Piston stuck with foreign matter.
Valve was set in no draw mode.
Checks not properly seating.
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31 Brooks Drive
Braintree, MA 02184
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symmons.com
Cause
source.
Cause
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Phone: (800) 796-6667
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gethelp@symmons.com
Solution
Re-pipe system to diagram 2 or 3
(pg. 9) which allows the discharge of
the pump (tempered water return) to
go back to the hot water source and
the cold inlet of the TempControl.
Re-pipe system to diagram 2 or 3
(pg. 9) which allows the discharge of
the pump (tempered water return) to
go back to the hot water source and
the cold inlet of the TempControl.
Check valve must be installed on cold
supply to controller or adjust ball valve
(see diagram 2 or 3 on page 9).
Remove cartridge and soak in
household vinegar for an hour. If
piston does not free after soaking
replace cartridge.
Run showers and sinks and then set
valve.
Solution
Clean fouled checks, or if damaged,
replace damaged parts.
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Fax: (800) 961-9621
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ZV-3008 REV J
100918