Troubleshooting for Fresh Water Marine Cooling System
Your original thermostat has 4 settings: Cool, Off, Heat, Supplemental Heat which allows you to prevent supplemental heat from being turned on supplemental heat are often electric heat strips that are expensive to run. Your new thermostat has only 3 settings:
Jul 24, · Hook up a manifold gauge (mechanical temporary use gauge, used by mechanics) and test the oil pressure. You probably need to replace the gauge. The computer sends info through a printed circuit board behind gauge cluster and sometimes you have to replace the whole gauge cluster.
How to Use Freon Gauges by Chris Stevenson A vehicle owner who wishes to charge his air conditioning system soon finds out that the procedure does not involve simply hooking a can and a hose up to the engine and turning a valve. Some AC units have to be completely evacuated, then pulled for vacuum and then recharged. The use of AC gauges might seem daunting, but the vehicle owner who knows how to hook them up and follow directions can complete an evacuation and recharge properly, without damaging the AC system.
Refer to your owner’s manual for the location of the high and low side fittings on your AC lines. Typically R a refrigerant has replaced the outdated R22 refrigerant, so the fittings on your vehicle will likely have quick release fittings. Hang the AC gauges from a hood flange or hole. Hook up the high side, or red hose on the AC gauge to the high side fitting on your AC line location.
It has a push-on quick release. Notice that the high side gauge hose will not fit to the low side on your car, therefore no mistakes will be made during the connection. Hook up the low side, blue gauge hose to your low side fitting on your AC line. Open both knob valves on the blue and red gauges. The needles will move. With the engine and AC controls off, look at both gauges.