I know a company who is in Azle ,Texas that the owner is color blind and can wire alot of different heat pumps with no problem he just tic marks the wires with numbers at each end and everything works fine.
He has some problems with electric heaters some times and calls me and I walk him through it.
"Everyday above ground, is a good day".
"But everyday that you have made a difference in someones life, may insure you stay above ground a little longer".<aircooled>
Bright light, and hold white paper or cardboard behind the wires in question. ... or the old " my contact lenses are giving me fits today, could you tell me what color this is please? note: use only if not wearing glasses-- or they'll catch on.
I work at a small mom/pop shop where BOTH the boss and I are color blind! Mom thought I was color when I was a kid but didn't make much of it. Knew for sure when I enlisted in the NAVY and signed up to fly helicopters. Couldn't pass the color test. Said I was red /green deficient. Spent most of navel career in boiler room, when given chance to learn A/C. That was back in 1972. Hasn't been much of problem, you learn to adjust, but I have blown up my share of transformers tho. Started putting fuses on secondary sides years ago for that reason if the equipment didn't have them. Kind of rattles customers sometimes when they find out my "handicap". It used to bother me years ago but I don't think about it much now. That's one nice thing about getting older. Of course when H/O feels heat coming out of the registers @ 2:00 a.m. when it's 20degrees out my being "slightly" colorblind doesn't seem to bother them.