3. Compressor Runs – Water Is Warm
2. Excess dirt or poor ventilation will cause the compressor overload protector to turn the compressor
off and it will cycle on and off with no cold water coming out of bubbler. Periodically clean with
vacuum cleaner, air hose or brush the condenser fins and cabinet ventilation louvers. In
environments where dirt and dust is more prevalent, clean more frequently.
a. Ensure water supply service stop valve is fully open.
CLEANING & MAINTENANCE GUIDE:
3. Periodically remove fountain top and clean out in-line strainer.
b. Verify minimum 20 psig supply line flow pressure.
6. Restricted Or No Water Flow
f. The water chiller may also develop a freezing condition in which the water will become frozen
inside the evaporator coil. This indicates a refrigeration problem or thermostat failure in which
case the water chiller needs to be checked by a qualified technician.
1. Motors have lifetime lubrication and do not require scheduled maintenance.
4. Do NOT use harsh chemicals, abrasive or petroleum based cleaners. Use of these will void the
Acorn
Engineering warranty.
a. The most common cause for a water chiller to run without producing cold water is a loss of
refrigerant. The water chiller must be taken to a certified refrigerant technician for repairs.
b. Check the incoming voltage to make sure it is within 10% of the serial nameplate rating.
b. Replace valve cartridge.
a. A dirty condenser or a blocked fan will cause a high head pressure and frequent cycling of the
overload protector.
a. Check to make sure the fan blade is rotating freely.
5. Exterior panels can be cleaned using mild household detergents or warm, soapy water. Extra care
must be used cleaning chrome plated items and mirror finished stainless steel. They can scratch
easily and should only be cleaned using a clean, soft cloth and mild soap with water or a mild glass
cleaner.
c. An incorrect refrigerant charge, restriction or defective compressor (not pumping) will also cause
the compressor to run without producing cold water. All these signs indicate a problem within
the refrigeration system and the water chiller must be checked by an authorized service
company.
5. Noisy Operation
4. Compressor Cycling On Overload Protector
d. Change the overload or relay if defective.
b. Check the compressor mounting to make sure the pins and clips are not rattling. If the
compressor appears to be noisy internally, it must be replaced.
b. Make sure the condenser fan motor is operative. The fan blade must turn freely to help remove
the heat of compression.
c. Check for twists or kinks in outlet tubing.
d. Check the water inlet strainer. Sediment from the main supply can get trapped in the screen
along with installation materials such as pipe dope and flux. The screen should be cleaned and
checked on a regular basis and replace if needed.
e. The cartridge valve located in the water control assembly or bubbler can also become clogged
with foreign material. The cartridge valve can only be replaced and not repaired.
c. A restriction or moisture in the system will also cause intermittent cycling. A certified refrigeration
mechanic should be contacted in this situation.
7. Water Drips Or Will Not Shut Off
a. Open fixture. Loosen nuts holding valve bracket assembly to bottom of fixture but do not
remove. Move complete valve bracket assembly further back from the front push pad and
tighten to lock in place.
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
CONTEMPORARY WATER COOLERS
I N S TA L L AT I O N / M A I N T E N A N C E I N S T R U C T I O N S
DRINKING FOUNTAINS
A152.8FG
Page 7 of 9
Revised:
07/18/18
7020-006-001
MURDOCK MFG. •
15125 Proctor Avenue • City of Industry, CA 91746 USA
Phone 800-453-7465 or 626-333-2543 • Fax 626-855-4860 • www.murdockmfg.com
Member of
