tvrao
17-07-2015, 05:41 AM
Hi,
I have the following problem. Kindly advise if anybody has expertize about the york systems.
Initially there was a power fluctuation, display went off, unit not running, try to reset but no use.
a) replaced the power board and display unit - problem not solved
b) replaced processor board with old eprom -same
c) revert the old board but replaced the battery from new board, keep the power ON for some hours.
Got the display back...but
I find factory settings require reprogramming. "Reprogram type of refrigerant to run"
when I try to enter through Keypad- 22 for R22, there is no response.
How I can reprogram the factory settings and what is the code for program?
controller - YAEP Micro based control system
unit - YAEP99WD9C50PA, China
pl suggest, thanks in advance.
I have the following problem. Kindly advise if anybody has expertize about the york systems.
Initially there was a power fluctuation, display went off, unit not running, try to reset but no use.
a) replaced the power board and display unit - problem not solved
b) replaced processor board with old eprom -same
c) revert the old board but replaced the battery from new board, keep the power ON for some hours.
Got the display back...but
I find factory settings require reprogramming. "Reprogram type of refrigerant to run"
when I try to enter through Keypad- 22 for R22, there is no response.
How I can reprogram the factory settings and what is the code for program?
controller - YAEP Micro based control system
unit - YAEP99WD9C50PA, China
pl suggest, thanks in advance.