2 Speed pump voltage help. TIA

[UKTubber]

Hi everyone - first time poster here but regular lurker. Thanks in advance for anyone who can help me please.

I have a Cove Spa which is quite basic, it has a Balboa spa pack which the pump became extremely noisy on both speeds, I swapped it over without issue and turned the hot tub back on which was working as it should. 

Since I had a multimeter to hand I checked voltage in the water to the ground next to the hot tub and was showing voltage in the water (for no reason other than I was curious and saw a youtube video a day or two ago) - I had the red probe in the water & the black probe on a slab (i'm aware this is a poor conductor of electricity but was just outside the tub next to the deck). My NCV pen was working fine and showing no voltage in the water & I hadn't noticed even a tingle so I dipped my finger in the water and couldn't detect anything but still wanted to be on the safe side so turned the tub off and disconnected the AMP connector from the newly fitted pump.

With the tub on low speed when testing between Black/White i'm getting 246V, and on high speed between Red/White i'm also getting 246V HOWEVER when on low speed between Red/White i'm getting approx 78 volts and when on High speed between Black/White i'm getting a 134 volts. (Black = Low, Red = High, White = Neutral, Green = Earth...sorry for confusion). 

I'm aware these might be two separate issues but any help is greatly appreciated. I plan to double check all this with a new multi-meter to ensure that wasn't the issue tomorrow, but anything else I should check before replacing the board & heating element?

The pump is a WP200-II which is the exact same model which was removed. Also may be of note but the message on the display was IC due to the water temperature being 6 degrees when refilled.

Thanks again for your time - also appreciate my knowledge is far below so posters here so please go easy on me if any of this is silly.

EDIT: Please delete thread (not sure how to do so myself) . Found the issue - I purchased a new multi-meter recently and was testing mv. Everything is as it should be. Embarrassing.
 

Edited January 7 by UKTubber
Solved, sorry.