Z 15+ - Timer Type Circulation Pump
Version 21.07
6
Please read over the operating manual prior to
installation and keep it for reference.
V. FAULT ANALYSIS AND ELIMINATION
Fault
Main causes
Elimination methods
The cold-water pipe is
filled with hot water
The temperature sensing function of the jet
valve has failed
Replace the jet valve
The water from the hot
water side of the faucet is
not hot
There are branch pipes
Add the number of jet valves
needed
Forgot to open the cold/hot water angle valve
at the connection of the jet valve
Open the angle valve
The non-return function of the jet valve has
failed
Replace the jet valve
The pump does not run
The current set time is not turned on
Turn on the current set time
The time returns to zero
when the pump is
powered on after it is
powered off
The built-in button battery of pump is
exhausted
Calibrate the time manually
Note: All the figures given in this manual are schematic diagrams; as the performance of the product is improving continuously,
the purchased products (including appearance and color, etc.) are subject to physical goods.
END OF SECTION
WILO USA LLC
262-204-6600
www.wilo-usa.com
Wilo Canada Inc.
403-276-9456
www.wilo-canada.com
Wilo Mexico
+52 442 167 00 32
www.wilo-mexico.com
