Lang Manufacturing Answered Questions & Fixed Issues

chech the voltage going to the contactor if it is less then 21 volts i would change the transformer. sometimes the contactor will chatter because it is not getting enough voltage.

It is single phase. Either 208 volts 3240 watts or 240 volts 4316 watts. Unfortunately, its difficult to know which one you have. It can be ordered either way. Here's the deal, For no apparent reason, some buildings have 208 volts, some have 240 volts. If you know when you buy new equipment, you specify which voltage you have. So if your building has 208 volts and the machine is 240, it will still work, maybe a little slower to heat up. If it is the other way around, your building has 240 volts and the machine has 208 elements, it will heat up much faster, but the life of the elements is drastacally reduced becuse they burn out much quicker. You can call Lang at 314 781 2777 ask for technical assistance and they may have a way to find the voltage if the tag is missing.

I believe the fan is supposed to rotate one way, then stop and spin the other way, ie. clockwise, then counter clockwise. Did the service guys check this? what service company did you use? You probably already know this but make sure the sides of the pan are NOT touching any of the sides of the oven. I work for a service company myself and I have to say if I got this call and neither of those two things solved it, I would be stumped!

http://www.fixya.com/support/r4964670-get_manual_most_any_electronic_device

First off, you will need to have each oven on a dedicated 3phase circuit.Make sure your breaker box can handle an additional 360 amps before you wire anything. You may not be able to use all 3 at once, if the main breaker can't carry the load.

Yes, there is a chart on page 6 of the service manual that tells you which wires to switch(according to your model#) to change to single phase.

go to partstown.com the have the manual for your oven in the top right corner

Hello, It could be that the EOC is bad but have you checked both sides of the breaker? as you may already know the 220v is on 2 breakers, although you may see the clock still working you still have 120v to the control side, the 120v breaker for the heater side of the cuircuit could have popped...If after checking the breaker you have a full 220 then I would have to say it's going to be a problem with your EOC or high limit if this model has one. Mike

http://www.langworld.com/lang_cd/Operate%20Manuals/CNVTOVEN/Op%20Convections.pdf
Check out this web site for your manual. The model EHS-APM is not listed but there are other units with multiple programming options. You will have to browse somewhat but what you are looking for is probably there.
Good Luck and hope this helps.

If your model # is ECOH-AP208DR, Electric Half Size Computerized Convection oven, the timer is as follows: 2J-30800-05 Timer Elec. 1hr 24V. Please check the time range of 1 hour and voltage on old timer be insure this is correct.

If it is a fan assisted oven, and the fan is working, then you need to fit a new oven element.
This is located at the rear of the oven where the fan is. Plz rate my solution.
Thanks.

FIRST check for a blown fuse inside , that could be it , let me know , AJ

WB, Your thermostat is shot and must be replaced. The most difficult part of this job is locating one to replace it with. Have the complete Model and Serial number handy... First, try locally. Call a local Commercial Kitchen repair/parts house. Surely theres one nearby, they work on all McDonalds, Wendy's, Restaraunts, etc... cooking equipment. Second, contact the manufacturer; Star Manufacturing International, Inc. 10 Sunnen Drive St. Louis, MO 63143-3800 Phone (314) 781-2777 (800) 264-7827 Fax (800) 264-6666 After you have it, SHUT OFF THE POWER AT THE BREAKER!!! Now try to turn the unit on to VERIFY you have no power. Then remove the t'stat knob. Now remove the screws holding the control panel in place. Tilt the control panel out toward you. Now you can see the t'stat and see how the sensor bulb is routed. (HINT: Take a piece of paper and draw the back side of the t'stat's wire connection locations and wire colors/numbers, BEFORE removing anything.) Remove the wires and the t'stat and route/wire the new one the same way. Another tip; Be extremely careful with the sensor bulbs capillary tube (the small tube connecting the bulb to the t'stat). NO 90 DEGREE BENDS ALLOWED! It is a hollow tube, if it's piched/kinked you can throw it in the trash and buy yourself a new one. (It came packaged as a coil for a reason) As you uncoil it, go slow and easy.