Mermaid Air Conditioner - Manual (Page 34)

a) Check for loose or disconnected wires in the electrical box. Before opening electrical
box remove all 115 (220) vac power from boat. See above WARNINGS regarding 115
(220) vac power.
b) If wiring is deemed good, problem will either be a faulty thermal safety fuse or a
faulty heater coil. Usually the thermal fuse is the problem. To replace either item,
remove the metal cover from around the evaporator by removing two screws on each side
and two bracket screws on the top of the evaporator. The evaporator cover will pull
straight up exposing the coil and fuse. Both items can be checked with a continuity
checker. Replace the faulty item and reposition the cover and replace the retaining
screws.
11. No Heat - Reverse Cycle Unit - Compressor And Fan Run:
a) Reversing valve sticking. Tap lightly with handle of screw driver.
b) Reversing valve solenoid loose or wire off. Tighten nut on solenoid and/or secure
wire.
c) Loose wire or faulty reversing valve relay in electrical box. Remove all power to boat
before opening electrical box. See 115 (220) vac WARNING under paragraph 1i)
above. Repair wire and/or replace reversing valve relay.
d) Faulty compressor. Replace compressor. Requires professional service.
OUR NORMAL PROCEDURE FOR A WARRANTY ISSUE IS AS FOLLOWS:
FIRST AND FOREMOST, DETAIL EXACTLY WHAT THE UNIT IS DOING. NEXT,
CALL OUR FACTORY AND ASK TO SPEAK TO ONE OF OUR TECHNICIANS.
OUR PHONE NUMBER IS (800) 330-3553. WE HAVE TECHNICIANS
AVAILABLE 8-5 EASTERN TIME, MONDAY THROUGH FRIDAY. SORRY, WE
HAVE NO TECHNICIANS AVAILABLE ON WEEKENDS. HAVING EXPLAINED
THE ISSUE TO ONE OF OUR TECH’S, THEY WILL PROBABLY SUGGEST A
COURSE OF ACTION TO ISOLATE THE PROBLEM AND ELIMINATE THE
ISSUE. SHOULD IT BE NECESSARY, WE MAY HAVE TO HAVE THE UNIT
RETURNED TO THE FACTORY.
PRIOR TO REMOVAL OF THE AIR CONDITIONER, INSURE YOUR SEA COCK IS
CLOSED. AFTER DISCONNECTING THE HOSES FROM THE UNIT, USING A
BARB TO BARB HOSE CONNECTOR, CONNECT THE TWO ENDS OF THE
HOSE TO EACH OTHER TO PRECLUDE ANY WATER ENTERING THE BOAT.
REMOVE THE UNIT FROM YOUR BOAT AND CAREFULLY PACKAGE THE
UNIT, TAG OR PLACE YOUR NAME, PHONE NUMBER AND A BRIEF
DESCRIPTION OF YOUR PROBLEM ON THE UNIT. THIS IS NECESSARY
BECAUSE FROM TIME TO TIME, SHIPPING DAMAGES MAY PRECLUDE US
FROM IDENTIFYING THE UNIT FROM MARKINGS ON THE OUTSIDE OF THE
BOX.