Tip & How-To about Heating & Cooling

Yearly maintenance on Reddy Heaters

If your unit is more than a couple of years old you probably need to change the filter in the back and set the pump pressure. A good indication that you need to do this is if your unit turns on, starts to heat, and almost immediately stops and blows smoke out of the end. The air/fuel mixture is not correct, probably due to a partially clogged filter. These heaters use the air pressure to determine the amount of fuel to pump. Obviously if the pressure is not correct, too little or too much fuel will be pumped. Either situation causes the unit to shut down and smoke.

Both the filters and the gauges to set the pressure can be found at www.reddyparts.com along with a good explanation as to why you need the gauges. If you want your unit to run properly, and efficiently, I recommend purchasing the gauges. They make setting the units easy as well as possible.

The pressure is set by bleed air pressure and must be exactly 3.5 psig. The gauge is the only accurate way to do it. The filters clog and change the pressure. When the difference is enough the unit will not run.

Now with that said there are several other things which you should check yearly. Check the fuel tank for water. Remove any you find by draining the unit. Remove the cover on the right side, as you look at the unit from the front, and remove the circuit board. Check for cracked connections. These things vibrate alot. If you find any broken solder connections resolder them and reattach the board. Until I completely resoldered my board I kept having problems.

That should take care of the unit and get you back to making heat.

Thanks for using FixYa


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1993 ford tractor 3930. How do I remove power steering pump to change filter?

extremely hot power steering pumps indicate pump under extreme pressure all the time and high pressure oil movement
could be faulty pressure relief valve in the pump
as to removal of the pump disconnect the oil lines and remove ant mounting bolts
for specifics then talk with a ford tractor service center

Aug 29, 2015 | Ford Cars & Trucks

1 Answer

Have a Hayward side mount pro series sand filter. Just recently the top lid has been popping off . Clamp appears to be in good shape. getting a pressure build up. Any thoughts on the cause/

A pressure build up, indicates several possibilities: 1. An obstruction or closed valve after the filter. 2. A clogged filter. If your filter is equipped with a multiport valve, try the valve setting in the backwash or bypass settings and see if the pressure changes. in the bypass setting, if the pressure remains, you have an obstruction or closed valve after the filter. if the backwash setting causes the pressure to drop, you either have a seriously clogged filter or an obstruction or closed valve after the filter. Assuming the sand is less than 2 years in place, have you checked the sand condition by digging down into the sand deep and checking to see how much debris is still in it? Sand filters DO NOT backwash everything out and will build up over time, requiring a complete dump, clean and refill with fresh filtration sand. If you take the time 1 or twice a season to manually stir up the sand and then backwash repeatedly after stirring it up, you can keep the sand in place for several more years of service. If you live in an area with hard water, it is not unusual to see the sand turn hard like concrete and have to be replced after only a couple years of use. This is typical when pool water pH is high and proper maintenance of the chemistry is neglected. As to the lid popping off, this means the pressure is excessive or the clamp is damaged.

Another point to consider if the condition of the pressure gage... is the reading accurate? In most cases the reading should never be higher than 20, ideally, down around 10-15PSI on clean. Any reading higher, indicates a dirty filter or obstruction after the filter.

Aug 11, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

i have a swimpro sand filter it is 5 yrs old and this season when i started it up it doesn't seem to have very good pressure i have backwashed it three times and it wont even run my pool cleaner no pressure i just changed the sand last year any ideals ?

If there is not much pressure, the problem is with the circulation system. Probably the pump.
When a sand bed gets old the pressure goes up on the guage, but the filter doesnt do much. When there is a lack of pressure, its due to a problem with the water flow. Usually a clogged impeller, strainer basket, or skimmer basket.

The most common solution for a loss of pressure is to dissasemble the wet end of the pump, clean out the impeller, and replace all o-rings and seals, including the shaft seal. This will revitalize the performance of your pump.

Jun 02, 2011 | Hayward SAND FILTER, PRO SERIES

2 Answers

1998 chevy 1500 pick up. good fuel pump, new fuel filter,fuel relay good. starts good, dies instantly. what to check next.

If your fuel system is all correct and working it needs to be an ignition problem-and the usual suspect is the crank sensor, which coincidently does not set a CEL-so, since it is very inexpensive (usually less than $50) and not difficult to change int a 350, take a chance there-you could try to remove the connector and clean off the connection first-worth a shot.

May 26, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

2000 vw golf aqy engine, starting from cold is a real nightmare its seems as if there is no fuel getting to the engine. when it dose start if it dosen't run the battery flat first. it dosen't seem to have a choke active, the revs are at the first mark below No 1 on the rev counter. I have changed the ht leads and the coil pack has been tested. please help driving me mad. thanks

It sounds like a fuel pump and/or fuel filter. Couple of reasons - if fuel filter is partially clogged fuel pump works twice as hard. Also this time of year with big temperature swings condensation (water) forms in fuel tank. If its a weak fuel pump, as pump gets old/tired it won't hold adequate pressure and drains back at night or shut down. Try the fuel filter first and run a good fuel cleaner through it prior to changing filter.

Jan 06, 2011 | 1999 Volkswagen Golf

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